无码精品人妻一区二区三区,激情综合五月天开心久久,在线 日韩 一区 二区,久久精品不卡一区二区三区

Welcome to Fujian Yongjing Technology Co., Ltd. the website!

Contact us

Add: 18#, Xin'An Road, Shaowu City, Fujian, China
International Trade Dept.
Tel: +86-599-6655932/6654968
Fax: +86-599-6654591
Home Trade Dept. 
Tel: +86-599-6654866/6654968
Fax: +86-599-6655755
High-purity Chemicals Dept.
Tel: +86-599-6655536/6654968
Fax: +86-599-6655755


Products

Chemical Reagent Ammonium Bifluoride

Quality StandardGB/T 1278-1994

Molecular FormulaNH4HF2                             Molecular Weight57.05

Item

Index

A.R.

C.P.

Ammonium Bifluoride (NH4HF2)   w/%   ≥

98.0

97.0

Ignition residue(Sulfate) w/%   ≤

0.01

0.05

Chloride(Cl) w/%   ≤

0.001

0.005

Sulfate(以SO4計(jì))  w/%   ≤

0.005

0.01

Fluorosilicate(SIF6) w/%   ≤

0.2

0.5

Fe w/%   ≤

0.001

0.005

Heavy metal(Pb)  w/%   ≤

0.002

0.005

Properties
The product is a rhombohedra or flaky crystal. It can deliquesce easily and dissolve easily in water. It can dissolve in alcohol slightly. It can be resolved when it is affected by the heat or it is in hot water. It can corrode glass. It’s poisonous.
Application
The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Storage
Moisture-proof and sealed preservation is needed.
Transport
It should be treated as inorganic poisonous goods.
Packing
The product is packed in a 25kg polythene plastic bag. Also pack it on consumer requests.

【Back】

Copyright(C)2017,Fujian Yongjing Technology Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice

国产自产妇一区二区三区| 久久伊人不卡了精品酒店| 久久精品综合一区二区三区| 亚洲综合网国产精品一区| 欧亚日韩在线一区二区三区| 亚洲无线码中文字幕在线| 久久久经典视频| 操小姐黄色视频网站在线| h在线观看的视频十八禁| 久草青娱乐在线| 色鬼久久爱综合久久鬼色| 小明精品国产一区二区三区| 99r在线视频观看视频| 日本 人妻 三级 在线| 精品亚洲区二区中文字幕| 97超碰免费在线观看视频| 女女同恋一区二区在线观看| 九九经典在线精品视频热| 窝窝午夜成人看A级无码| 欧美日韩一区二区免费高清| 青青久久精品国产免费看| 无敌神马在线观看免费完整一| 成人免费无码片在线观看| 久青草影院在线观看国产| 亚洲日本精品一区二区高清| 色网址在线观看| 免费无码无遮挡裸体视频| 波多野吉衣亚洲一区二区| 日本精品啪啪一区二区三区| 国产欧美精品区一区二区| 欧美久久伊人| 中文字幕一区二区三区毛片| 女同性aaaaa一区二区| 亚洲中日韩美女互桶鸡鸡| 少妇精品一区二区三区人妻| 国产精品揄拍高清av播放| 大香伊蕉欧美一区二区三区| 久久久噜噜噜噜噜噜噜色| 成人xxx视频在线播放| caoporn免费视频在线| 亚洲欧美韩国日本一区二区|